/*
No.     Time        Source                Destination           Protocol    Length      Info
165    19.285254000    192.168.0.1             192.168.0.105             DNS        100            Standard query response 0x0002 CNAME www.a.shifen.com

Frame 165: 100 bytes on wire (800 bits), 100 bytes captured (800 bits)
Ethernet II, Src: TendaTec_60:4b:46 (c8:3a:35:60:4b:46), Dst: Dell_33:c1:bd (18:03:73:33:c1:bd)
Internet Protocol Version 4, Src: 192.168.0.1 (192.168.0.1), Dst: 192.168.0.105 (192.168.0.105)
User Datagram Protocol, Src Port: domain (53), Dst Port: 50976 (50976)
Domain Name System (response)
    Request In: 164
    Time: 0.036077000 seconds
    Transaction ID: 0x0002
    Flags: 0x8180 (Standard query response, No error)
    Questions: 1
    Answer RRs: 1
    Authority RRs: 0
    Additional RRs: 0
    Queries
        www.baidu.com: type CNAME, class IN
            Name: www.baidu.com
            Type: CNAME (Canonical name for an alias)
            Class: IN (0x0001)
    Answers
        www.baidu.com: type CNAME, class IN, cname www.a.shifen.com
            Name: www.baidu.com
            Type: CNAME (Canonical name for an alias)
            Class: IN (0x0001)
            Time to live: 8 minutes, 7 seconds
            Data length: 15
            Primaryname: www.a.shifen.com
*/

char response_cname_www_baidu_com_pkt[100] = {
0x18, 0x03, 0x73, 0x33, 0xc1, 0xbd, 0xc8, 0x3a, 
0x35, 0x60, 0x4b, 0x46, 0x08, 0x00, 0x45, 0x00, 
0x00, 0x56, 0xa6, 0x10, 0x00, 0x00, 0x40, 0x11, 
0x52, 0xcc, 0xc0, 0xa8, 0x00, 0x01, 0xc0, 0xa8, 
0x00, 0x69, 0x00, 0x35, 0xc7, 0x20, 0x00, 0x42, 
0x1b, 0x3d, 0x00, 0x02, 0x81, 0x80, 0x00, 0x01, 
0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x03, 0x77, 
0x77, 0x77, 0x05, 0x62, 0x61, 0x69, 0x64, 0x75, 
0x03, 0x63, 0x6f, 0x6d, 0x00, 0x00, 0x05, 0x00,
0x01, 0xc0, 0x0c, 0x00, 0x05, 0x00, 0x01, 0x00,
0x00, 0x01, 0xe7, 0x00, 0x0f, 0x03, 0x77, 0x77,
0x77, 0x01, 0x61, 0x06, 0x73, 0x68, 0x69, 0x66, 
0x65, 0x6e, 0xc0, 0x16 };

int response_cname_www_baidu_com_pkt_size = sizeof(response_cname_www_baidu_com_pkt);